# FRAUDSkill: Structured Frozen-Weight Skill Optimization for Audio Anti-Fraud Detection > Source: > Published: 2026-09-21 06:30:12+00:00 Large audio-language models have shown promise for anti-fraud detection by directly processing speech and reasoning over fraud-related evidence. Their deployment, however, requires predictions to follow a predefined label space and a structured decision protocol consisting of service-scenario identi